4-Amino-2,1,3-benzothiadiazole as a Removable Bidentate Directing Group for the Pd(II)-Catalyzed Arylation/Oxygenation of sp<sup>2</sup>/sp<sup>3</sup> β-C–H Bonds of Carboxamides
作者:Chennakesava Reddy、Narendra Bisht、Ramarao Parella、Srinivasarao Arulananda Babu
DOI:10.1021/acs.joc.6b01831
日期:2016.12.16
(ABTD) as a new bidentate directing group for the Pd(II)-catalyzed sp2/sp3 C–H activation/functionalization of various aliphatic/alicyclic/aromatic carboxamide systems. The Pd(II)-catalyzed, ABTD-directed sp3 C–H arylation/acetoxylation of aliphatic- and alicyclic carboxamides afforded the corresponding β-C–H arylated/acetoxylated carboxamides. The Pd(II)-catalyzed, ABTD-directed sp3 C–H arylation of c
在本文中,我们报告了4-氨基-2,1,3-苯并噻二唑(ABTD)作为Pd(II)催化的sp 2 / sp 3 C–H活化/官能化各种脂族/脂环族化合物的新双齿导向基团。/芳香族羧酰胺系统。Pd(II)催化的,ABTD定向的脂族和脂环族羧酰胺的sp 3 C–H芳基化/乙酰氧基化反应提供了相应的β-C–H芳基化/乙酰氧基化羧酰胺。将Pd(II)催化的,ABTD定向SP 3环丁烷的C-H芳基化,得到具有相应的双β-C-H不同的芳基芳基化碘化物具有cyclobutanecarboxamides所有-顺具有高度立体控制的立体化学。Pd(II)催化的各种苯甲酰胺的邻位C(sp 2)-H键的ABTD定向的芳基化/苄基化/乙酰氧基化/烷氧基化反应提供了相应的邻位CH芳基化/苄基化/加氧的苯甲酰胺。从代表性化合物5g(bis-β-C(sp 3))的X射线结构确定在Pd(II)催化的脂肪族/脂环族羧酰胺和苯甲